ORCHIDACEJ&. 177 



6. H. Cooperi, Watson. Stout: lip ovate: upper sepal ovate. San Diego. 



7. H. gracilis, Watson. Like No. 4: lip linear: spur saccate. Or., Wash. 



8. H. Michmli, Greene. Stout stein, leafless: spike dense: sepals in. long. & CaL 



5. SPIRANTHES, Richard. 



1. S. Romanzofflana, Chamisso. Spike dense, conspicuously bracteate, 1-4 in. long* 

 perianth greenish- white, & in. long, curved (Called Ladies' Tresses). Wet places. 



2. S. porrifolia, LindL Similar: flowers smaller: 2 callosities at base of lip. 



6. GOODYEAHA, Robt. Brown. 



1. O. Menzaesii, LindL Scape pubescent, 6-15 in. high: leaves smooth, 2-3 in. long, 

 in & raralate tuft: spike of puberulent white flowers 1-sided. (Sattksnakc Plantain.) 



7. LISTEBA, Robt. Brown. 



1. L. Comralarioidea, Nutt. Slender, 3-12 in. high: flowers purplish in a pubescent 

 raceme: lip 2-lobed or emarginate, toothed at base, 2-5 lines long. Damp woods. 



2. 1* cordata, R. Br. Smaller: flowers minute, smooth. (Twayblade.) N. CaL, N. 



8. EPIPACTIS, HaUer. 



L E. gigantea, Dougl. Leafy, 1-4 ft. high: leaves ovate to lanceolate: flowers 3-10, 

 greenish, purple- veined: sepals ovate-lanceolate, J-| in. long; lip as long. Along 

 streams. 



9. OEPHALANTHEBA, Richard. 



i. 0. Oregana, Reich, f. Parasite: perianth & in. long; sepals and petals lanceolate; 

 lip as in Epipactis with wavy -crested nerves. Forests, N. Cal to Or. 



10. CYPBIPEDIUM, Linnaeus. 



1. 0. fasciculatum, Kellogg. Villous, 2-6 in. high: leaves ovate, a pair: peduncle 

 viscid: flowers several in a cluster or 1, greenish. (Bradley's Cypripcdium). Rare. 



2. C. montanum, Dougl. Leafy, 1-2 ft. high: flowers 1-3; sepals and wavy-twisted 

 petals brownish, narrow, 1&-2& in. long: lip oblong, white, purple- veined. Cent 

 Cal. to Or. 



8. 0. Galifornicum, Or. Often taller: flowers 3-12: sepals & in. long: lip obovoid- 

 globose. In swamps or wet places. N. CaL 



IBIDACRE. 



Perennial herbs with sword-shaped or grass-like leaves, the divisions of the superior 

 perianth all petaloid and oonvnlnte in the bud, withering-persistent. 



